Acetylene-gas generator.



P. CAMPBELL.

ACETYLENE GAS GENERATOR.

APPLICATION FILED MAY 27. I913- 1 9 1 Patented June 20, 191.6.

2 SHEETS$HEET I.

NB COLUMBIA PLANOGRAPH C0,. WASHINGTON, n. c.

P. CAMPBELL.

vALETYLl-INE GAS GENERATOR.

APPLICATION FILED MAY 21. 1913.

L1 WNW. Patented June 20,1916.

2 SHEETS-SHEET 2.

COLUMBIA PLANGURAPH C0,, WASHINGTON. D. c.

PETER CAMPBELL, OF ST. JOHN, NEW BRUNSWICK, CANADA.

ACETYLENE-GAS GENERATOR.

To all whom it may concern:

Be it known that 1, PETER CAMPBELL, a subject of the King of Great Britain, residing at St. John, in the Province of New Brunswick, Dominion of Canada, have invented certain new and useful Improvements in Acetylene-Gas Generators, of which the following is a specification My invention relates to improvements in acetylene gas generators and the object of the invention is to devise a generator in which the mechanism or leverage operating valves is partly submerged and water sealed thus doing away with the necessity of using stuffing boxes or other similar means which interfere with the working of the valves clogging same with waste or residue.

The invention consists of the parts con structed and arranged all as hereinafter more particularly described and illustrated in the accompanying drawing in which:

Figure 1 represents a vertical section through a generator constructed according to my invention. Fig. 2 is a fragmentary perspective of the upper chamber and bell member of the generator showing the location of the mechanism whereby the feed valve is rendered inoperative.

1 is the base portion of the generator forming a lower water chamber and having a sloping bottom 2.

3 is the upper water chamber having a semi-circular and vertically disposed projection 4 in its periphery.

5 is a central tube open at the bottom to the lower water chamber, and extending up above the water chamber 3.

6 is a vertically disposed projecting member secured to the periphery of the lower chamber and communicating therewith.

7 is a chamber located below the upper water chamber 3.

8 is a suitable pipe extending up into the water chamber 3 for a certain distance and 9 is a cap extending down over the top of the pipe 8 for considerable distance, and 10 is a rod secured to the cap -9 and extending down through the pipe 8 and then up outside the generator as will be more fully described later on.

11 is a suitable surface blow-oif pipe leading from the chamber 7 up outside the generator and designed to connect with the main blow off pipe 12, which is formed with two branches, one of the said branches projecting Specification of Letters Patent. Patentgfll J 111103 2@ 1916. Application filed May 27, 1913.

Serial No. 770,145.

up through the bottom of the chamber 3 for a certain distance. 13 is the gas supply pipe which also extends up through the chamber 3 for a certain height, the lower portion of the gas supply pipe being turned at right angles and extending out the side of the lower water chamber 1.

1 1 is a carbid container of cylindrical form within the central tube, said container having a bottom formed like an inverted frustum of a hollow cone, such bottom being pro vided with a valve'seat mounted around the lower edge thereof.

17 represents a perforated diaphragm extending transversely across the carbid container 1 4, such diaphragm carrying an inverted cylinder 18 designed to be located above the valve seat 16.

19 is a double ball valve having a spindle 33 connected thereto extending up through the top of the generator, the inner ball 19" being on the upper side of the valve seat 16 and the outer ball 19 being on the lower side of the same.

20 is an annular bell shaped member surrounding the central tube 5.

21 is a cylindrical cover extending down over the carbid container.

22 is a suitable pipe secured to the under side of the bell member 20, and designed to extend down over the blow off pipe 12, said pipe having a suitable aperture 22 23 are brackets on the top of the bell member 20 designed to have the wheels 2 1 journaled thereto.

25 are guide rods extending upward from the upper water chamber upon which the wheels 2 1 are designed to rotate when the bell member 20 rises or falls in the upper water chamber 3..

26 is a rod designed toextend up through the projection 4 and having a pin 26 there on designed to engage a suitableprojection 27 on the upper rim of the upper water chamber. The lower end of the rod 26 is pivotally connected to a lever 28 which has its fulcrum in the standard 29 at the bottom of the upper water chamber. 30 is a lever mounted on the'top of the carbid container 14 and having its fulcrum in the standard 31 which is mounted toward the side edge of theupper end of the said container.

32 is a link which pivotally connects the lever 30 to the lever 28.

33 is a valve spindle carrying the two balls I the top of the cylindrical'cover 21.

19 and 19. of the valve 19 and pivotally connected at itstop to the lever 30. The down pressure of the projection 27 on the bell member 20 upon the pin 26 attached to the rod 26 causes the levers to lift the valve spindle and thus feed carbid, whereas if the bell member rises through the generation of the acetylene gas the valve is closed by the weight of the balls 19 and 19 of the valve 19 stopping further generation. The projection 6 of thelower water chamber 1 has an overflow trough 34 formed by the partition 36, such trough having a discharge vent 35 near the bottom thereof. The trough 34 is designed to take the overflow from the lower water chamber.

37 is a rod extending down through the lower water chamber 1 connected to and designed to operate an agitator 38 located above the inclined bottom of the said lower water chamber. r

39 is a water level indicator which floats in the water in the lower water chamber such indicator having a small rod 40 connected to its upper end extending through the guide 41 the said rod being designed to indicate any fluctuation of the water level in the lower chamber. I

42 is a cock at the ,bottom of the lower water chamber, for draining off the sludge and water. On the surface blow-01f pipe 11, a cock 43 is mounted, such cock being actuated by the lever 44 which is provided with a slot 45 therein. The rod 10 is provided intermediate of its ends with a pin 47 preferably :Eormed integral therewith which engages with the slot 45. The upper end of the rod 10 is bent inthe form of an inverted U'and extends above the cover of the car- 'bid container and is connected to a lever 48 which is provided with a cam shaped end and operates the interlocking gear 49Ton he lower end of the rod 10 is bent into a U near the bottom of the lower water chamber and extends upward and is secured to the cap 9 over the gas delivery pipe 8. At a certain point of the rod 10 a pin 7 0 engages one end of the crank-lever 71 attached to the body of the generator, the other end of the said lever engaging the bifurcated end of the link '72 located at the rim of the upper chamber and provided at the other end with an orifice therethrough designed to slidably engage the trip 'rod26.

' The interlocking gear 49 consists of a standard 52 secured to the top of the carbid container cover 21 adjacent to the winged head 5401? the 'feed cock 53, the lever 48 being pivotally mounted in the said standard and so designed that when raised at the outer end. it engages the winged head 54 of the cook 53, thereby preventing the said cock being opened, and when lowered the winged head 54 is capable of being rotated into a vertical position in which it engages the lever 48. It will be understood that when the lever 48 is in this depressed condition, the cap 9 is pressed downwardly on the pipe 8, the valve 43 being simultaneously opened through the medium'of the lever 44 which, due to the engagement of the slot 4-5 with the pins 47, actuates the rod 10, which in turn transmits its motion to the lever 48 and the cap 9. Simultaneously with the operating of the lever 44 to press the rod 10 downwardly, the pin 70 actuates the crank lever 71 whichin turn transmits its motion to the slotted bolt 72 and actuates the rod 26 so that the pin 26 is disengaged from the projection 27.

When it is desired to fill or empty the generator the lever 44 is fully raised up opening the cock 43 and admitting air into the generator, the cap 9 over the delivery pipe 8 being simultaneously pressed down tightl preventing any gas from returning to the generating chamber or the water from siphoning through from the upper water chamber into the lower and at the same time moves the rod 26 laterally, thereby disengaging the pin 26 from beneath the projection 27 on the bell as well as operates the interlocking gear lever 48 and permits of the feed cook 53 being opened in which position the winged head 54 engages and locks the lever 48 in position.

55 is a heavy grid ring designed to be inserted into the carbid container on top of the carbid and to press same down, said ring surrounding the valve spindle.

56 is a chain connected to the ring 55 and passing over a pulley 57 on the top of the carbid container cover and also over a pulley 58 on the top edge of the same and down around pulleys 59 and 60 at the bottom of the upper chamber and then up and 'around a pulley (31 on the rim of the upper chamber, and down a certain distance on the outside of the generator terminating in a suitable balance weight 62. The height of carbid in the carbid container can be determined readily by referring to the side of the generator which may have a suitable index and the weight will register on the index how much carbid is in the container. The ring can be pulled up by the chain when filling the container with carbid and held in place by having an aperture in the weight into which a pin at the lower end of the index is inserted.

It will be seen that the operation of the valves by a mechanism which is partly submerged and wholly covered at all points will obviate the necessity of having stuliing boxes which are liable to clog with waste or residue and thus interfere with the operation thereof. Further it will be seen that the valves having been properly adjust- ,ed the pressure on the pin 2G by the projection 27 depresses the rod 26 and through the medium of the lever 28, the link 32 and' the lever 30 actuates the valve spindle, raising the upper. valve ball 19 suflicientlv to allow the carbid to feed through into the lower water chamber, and as the gas is generated the bell member is raised so that the projection 27 is disengaged from the pin 26 permitting the ball 19 to engage with the valve seat 16.

lVhat I claim as my invention is:

1. In an acetylene gas generator and in combination, an upper chamber, a carbid container located in the upper chamber, a feed cock mounted on the carbid container, a pivotally mounted interlocking lever provided with a cam end cooperating with the feed cock, a pipe extending into the upper chamber, a cap slidably mounted on the pipe, a rod operatively connecting the cap and the interlocking lever, and means for simultaneously operating the said cap and lever,

22. In an acetylene gas generator, an upper chamber, a carbid container located in the upper chamber, a valve operating in the container, a vertical rod operatively connected to the valve, a pin on said rod, a bell member in the upper chamber, a projection on the bell member cooperating with the pin on the vertical rod, a lower chamber, a pipe eX- tending into the upper chamber, a cap on the pipe, a surface blow-01f pipe, a cock mounted on the surface blow off pipe, and means for simultaneously operating the cap and cock and moving the vertical rod laterally.

3. In an acetylene gas generator, an upper chamber, a carbid container in the chamber, a valve operating in the carbid container, a rod operatively connected to the valve, a pin on the rod, a bell member in the upper chamher, a projection on the bell member adapted to engage the said pin, a lower chamber, a pipe extending into the upper chamber, a cap on the pipe, a surface blow off pipe in the lower chamber, a cock mounted on the said blow off pipe, a feed cock on the carbid container, a locking lever controlling the operation of the feed cock, and means for simultaneously operating the cap, cock and interlocking lever and moving the first said rod laterally.

4. In an acetlylene gas generator, an upper chamber, a carbid container in the upper chamber, a valve in the carbid container, a rod operatively connected to the valve, a pin on the rod, a bell member in the upper chamber, a projection mounted on the bell member designed to engage with the said pin, a lower chamber, a pipe extending into the upper chamber, a cap on the pipe, a feed cock on the carbid container, an interlocking lever coacting with the said feed cook, a rod engaging at one end the said interlocking lever and at the other end the said cap, a pin intermediate of the ends of the said rod, a surface blow-elf pipe on the lower chamber, a cock mounted on the said pipe, a lever on the said cock adapted to engage the pin on the last said rod, and means operated by the said lever designed to engage and disengage the first said rod with the projection on the bell member, as and for the purpose specified.

5. In an acetylene gas generator, an upper chamber, a carbid container suitably retained therein, a valve in the container, a rod operatively connected to the valve, a pin on said rod, a bell member in the upper chamber, a projection mounted on the bell adapted to engage with the said pin, a lower chamber, a pipe extending into the upper chamber, a cap thereon, a feed cock, a pivotally mounted interlocking lever coacting with the said feed cook, a rod engaging at one end the interlocking lever and at the other end the said cap, a pin intermediate of the ends of the said rod, a blow-01f pipe on the lower chamber, a cock mounted on the said pipe, a lever on the said cock adapted to engage the pin on the last said rod, a crank lever pivotally mounted to the generator having one end engaging the last said rod, a slotted bolt connected at one end to.

the crank lever and at the other end to the first said rod, as and for the purpose specified.

In witness whereof I have hereunto set Witnesses:

GILMORE BAUNDAGE, ELLSWORTH C. Tur'rs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0t Ratente,

Waahinmen, D. 0. 

